On Thu, May 27, 2010 at 08:29:14AM +0200, Marc Pignat wrote: > Only the -O0 fails... the compiler seems to have optimized away most of our > test!!! > > My proposed solution is to use the 'volatile' keyword to make sure the > compiler > will really do the job. > > Please note that it does not work with -O3, but the configure script compile > with > -O2, so this should be fine.
I'd love to have a fix that works with -O3 too, but that may be better to resolve upstream. Making the test program depend on its input (arguments, stdin or whatever) should help, but as Configure is actually a generated file, I assume some things are easier to implement than others. Meanwhile, I'll use the 'volatile' solution and hope that gcc -O2 doesn't become more aggressive soon. I wonder if this should be considered a gcc optimization bug. > At this time I've only tested the Configure scripts, which now detects the > align problem on ARM. I'm compiling the whole thing to check if the md5 bug > goes away! All my tests indicate that your solution works, so I intend to include it in the next upload soon and notify upstream when we've verified the bug is actually fixed with the new packages. Thanks for your work on this, -- Niko Tyni [email protected] -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
